ABC News — Feds Warned Last Spring of Spike in Violence and Extremism During Pandemic: Memo

"We were already in a weakened condition when the pandemic hit -- class divisions, overt racism, partisanship, a really poor social support infrastructure -- so if you think about the effect of the pandemic on an 'epidemic' of shootings -- it's like the immune system of the United States was already suppressed," Jeffrey Butts, director of the research and evaluation center at John Jay College of Criminal Justice, told ABC News.

CNN — US LAW ENFORCEMENT ‘VERY NERVOUS’ ABOUT PROACTIVE POLICING AS GUN VIOLENCE SOARS

"I'm an older white guy. I'm going to stop, I don't feel threatened," said Jeffrey Butts, a professor at John Jay College of Criminal Justice. "There are people whose rational expectation is that (the stop) puts them in danger. They're going to have different response. It's amazing to me that we haven't confronted that and individual police officers don't think about that. They're just shocked and angered by someone daring to not comply."

Washington Post — Officials Worry the Rise in Violent Crime Portends a Bloody Summer: ‘It’s Trauma on Top of Trauma’

Some experts have detected some promising signs in recent crime data. In New York City, more than 500 people have been shot this year — the highest number in a decade and up more than 50 percent over the same period in 2020. But Jeffrey Butts, director of the research and evaluation center at John Jay College of Criminal Justice, said that percentage was better than the 158 percent increase in shootings reported last fall in the city, suggesting that the surge in violence, while still up, may be declining.